Knife.



S. GHEMIENES.

' KNIFE.

APPLICATION rum) NOV.3,1908.

91 5,269, Patented Mar. 16, 1909.

rm: NORRIS PETERS cm, WASHINGTON, n, c.

SIMON OHEMIENES, OF ST. OLAIRSVILLE, OHIO.

KNIFE Application filed. November 3, 1908.

To all whom it may concern:

Be it known that I, SIMON OHEMIENES, a subject of the Czar of Russia,residing at St. Clairsville, in the county of Belmont and State of Ohio,have invented certain new and useful Improvements in Knives, of whichthe following is a specification.

This invention relates to knives or similar implements, and has for itsobject to provide a knife which cannot be opened or closed except byspecial manipulation of the parts thereof.

The invention will serve to prevent the unauthorized opening of theknife when closed, and also serve to prevent closing of the blade, andconsequently possible injury, when opened.

The invention is also serviceable in connection with daggers and similarweapons.

The invention is illustrated in the accompanying drawings in whichFigure 1 is a plan view of the knife closed; Fig. 2 is a similar view ofthe same opened; Fig. 3 is a front edge view with the blade open Figs. 4and 5 are plan views of oppo site sides of the knife with the same inpartly open position.

The handle of the knife is composed of two separate or independent partseach of which comprises a metal plate 6 with a grip 7 of wood or othermaterial fastened thereto. These parts are pivoted together by means ofa pivot 8 connecting the front ends of the plates 6. A spacing block 9is fixed to the rear end of one of the plates, and this block isprovided with a notch 10 for a purpose to be hereinafter explained.

The shank of the blade 11 is fixed between the halves of the handle bythe pivot 8, said shank being indicated at 12, and on opposite sides ofthis shank are projections 13 and 14 which are located on diametricallyopposite sides of the pivot. These projections are adapted to engage inand stop against the ends of notches 15 and 16 made in the handle plates6 on opposite, sides of the pivot 8. When the knife is swung to fullopen or closed position the said projections strike or stop against theedge of the plates in the notches, and inasmuch as the projections arelocated on opposite sides of the blade and on opposite sides of thepivot, the blade cannot turn in either direction unless one of thehandle sections is also turned therewith. And in order to preventturning of the handle sections with respect to each Specification ofLetters Patent.

Patented March 16, 1909.

Serial No. 460,846.

in the block 9, or to be disengaged therefrom, as the part 17 is slid inor out. A spring catch 21 is also pivoted in the recess of the hollowsection of the handle, in position to engage with its hooked head in anotch 22 in said shank 17. The tail of this catch or detent projectsbeyond the edge of the handle, as indicated at 23.

In order to open the knife it is necessary to first press in on the tail23 of the detent to disengage its head from the notch 22, said detentbeing pressed by a spring 24. The slide 17 may then be pulled out to acertain extent by pressure of the finger on the part 18, disengaging thetongue 19 from the notch 10. Then the two handle sections may be turnedwith respect to each other, on the pivot 8, together with the bladewhich also turns on said pivot until it reaches the full open positionat which time the projections13 and 14 engage in the handle plates andprevent further turn of the knife. I/Vhen one handle section is swungcompletely around with respect to the other, and brought in oppositerelation thereto, the

slide 17 is pushed in, causing its tongue 19 to engage in the notch 10thereby locking the two parts of the handle together and also lookingthe blade in open position. To close the blade the reverse operation isperformed. That is, the slide 17 is pulled out and one handle section isturned around with respect to the other, carrying with it the blade 11,until said blade resumes its closed position and the handle sections areagain in position to lock the same together.

In consequence of the construction shown and described it is impossibleto either close or open the knife without unlocking the handle sections,and the locking devices are sufficiently intricate to prevent a child,for

example, opening the knife, and when the knife is in actual use there isno danger of the blade closing on the hand of the user.

I claim:

1. A bladed implement comprising a handle formed in two sections pivotedtogether at the front end, one of the sections having a notched spacingblock at the rear end, a blade pivoted between the front ends of thesections, and a slide movable lengthwise in one of the handle sectionsand having a finger piece at the front end and a locking tongue at therear end, oflset toward the other section and engageable in the notch toprevent pivotal movement of the section.

2. A bladed implement comprising a handle formed in two sections pivotedtogether at the front end, one section being recessed at the rear end, ablade pivoted between the sections, and a slide movable lengthwise insaid recessed handle section and having a finger piece at the front endand a locking tongue at the rear end engageable with the other sectionto prevent pivotal movement, and a catch located in the recess in therear end of said handle section and engageable with the slide to holdthe same in retracted position, with the tongue engaged, the catchhaving a projection exposed at the rear end of said handle section.

In testimony whereof, I my signature in presence of two witnesses.

SIMON CHEMIEN ES.

Witnesses:

LENA GREENE, GEORGE TnoRNBURe.

